11.5
An infinite limit appears on a graph when a function’s output increases or decreases without bound as the input approaches a specific value.
Mathematically, this means that the limit of f(x) increases toward infinity or decreases toward negative infinity as x approaches a.
This behavior indicates the presence of a vertical asymptote—a vertical line that the function approaches but never touches or crosses.
For example, when x equals 2, the function is undefined. But as x approaches 2 from either side, the function’s values rise rapidly without bound. On the graph, this appears as a steep climb, forming a vertical asymptote at x = 2.
A helpful analogy is a rock climber approaching a cliff. The path begins with a gentle slope, but as the rock climber moves further, the incline steepens rapidly.
Near the edge, the slope turns nearly vertical—too steep to continue.
The graph of this scenario reveals a curve that climbs ever more steeply, mirroring how, near a vertical asymptote, a function’s values surge beyond control.
Wanneer men het gedrag van een curve in de nabijheid van een specifiek punt op de horizontale as bestudeert, doen zich gevallen voor waarin de hoogte…
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